#coding:utf-8
# print("你好")

# str="HelloWorld"
# print(str)
# print(type(str))
# print(str[0:1])    #左闭右开区间  [0,1)
# print(str[0:5])
# print(str[0:9])
# print(str)


# print(str[-5:])    #打印word

# print(str[-10:-5])      #打印Hello


# str='helloWorld'
# print(str)
realname="张三"
# print('我的名字是'+realname)
# print(realname*3)
print(f'我的名字是{realname}')